Application layer

In hydrogenated amorphous silicon/crystalline silicon (a-Si:H/c-Si) heterojunction (HJ) solar cell, the high contact resistance or high Schottky barrier at the back-surface field (BSF)/Indium Tin Oxide (ITO) is prejudicial to the majority carrier collections process, as it degrades the fill factor (FF), which in turn, cell efficiency.

16p viling 11-10-2024 1 1   Download

This study aims to contribute to the development of a GaN/Ga2O3 diode that can be utilized in high-power device applications. The simulated device is calibrated against experimental GaN and Ga2O3 diodes, considering the effect of thickness of GaN layer and its doping concentration on the performance of GaN/Ga2O3 diodes. The band structures of devices are investigated to revial which factors that affect the properties of GaN/Ga2O3 diode.

6p viling 11-10-2024 4 1   Download

In this study, we propose a NOMA communication model combined with linear array antennas for the purpose of enhancing physical layer security. We introduce a model of 4 nodes: transmitter node S, receiver node D1, receiver node D2, eavesdropping node E.

10p viling 11-10-2024 1 1   Download

Graphene-based electrode materials exhibit a high specific capacitance and long charge-discharge cycling life, but the material cost remains high because of the complexity of the graphene manufacturing process. This study employed an electrochemical exfoliation method to prepare graphene in a simple and ecologically friendly procedure. According to research findings, the disordered multi-layer structure of graphene exhibited great purity, porosity, and graphitization.

6p vikwong 29-09-2024 3 1   Download

This work demonstrates an AlGaN/GaN high electron mobility transistor (HEMT) with Cr/Graphene ohmic contacts constructed without heat treatment. The Cr/Graphene ohmic contact was fabricated using a spray-coated graphene nanoflakes solution and electron-beamevaporated Cr. This method does not require a high-temperature annealing step in conventional Ti/Al/Ni/Au ohmic contact. It is suggested that the Cr/graphene combination acts similarly to a doped n-type semiconductor in contact with AlGaN/GaN heterostructures, enabling carrier transport to the AlGaN layer.

8p xuanphongdacy06 18-09-2024 3 1   Download

The main aim of this thesis is to investigate a novel synthesis route to produce 2D bismuth-based nanosheets from liquid bismuth precursors by exfoliating their interfacial oxide. Scalable and large-area synthesis of 2D nanosheets will be developed to access previously inaccessible 2D bismuth-based nanosheets from the non-layered bulk parent material. Subsequently, the as-synthesis 2D nanomaterials will be investigated for different functional applications.

139p runordie3 06-07-2022 13 2   Download

This paper presents a comparative study of two different forward methods such as the space domain method and the frequency domain method. The performance of each method was evaluated on two synthetic models. Finally, the more effective method was applied to calculate Bouguer gravity anomaly in the East Vietnam Sea and adjacent areas using the latest available dataset from the TOPEX mission.

9p tamynhan6 14-09-2020 22 3   Download

Two-dimensional (2D) perovskites are a new class of functional materials that may find applications in various technologically important areas. Due to the better moisture and illumination stability, layered perovskites can be the next generation of materials for solar light-harvesting applications, as well as for light emitting diodes (LEDs).

12p tamynhan4 06-09-2020 16 2   Download

The experimental results show that the highest photocatalytic activity was obtained from the Ag (5) doped Zn-0.75Al-0.25La-CO3 photocatalysts calcined at 500 0C with a degradation efficiency of 99,4 after 40 min of irradiation only. This study could provide a new route for the fabrication of high performance photocatalysts and facilitate their application in the environmental remediation issues.

13p tamynhan4 06-09-2020 10 3   Download

Bài giảng "Lý thuyết mạng máy tính - Chương 3: Tầng ứng dụng" sẽ cung cấp cho người đọc một số kiến thức cơ bản về các ứng dụng mạng, DNS, HTTP, SMTP. FTP. Đây là một tài liệu hữu ích dành cho các bạn sinh viên ngành Công nghệ thông tin và những ai quan tâm dùng làm tài liệu học tập và nghiên cứu.

73p koxih_kothogmih2 23-08-2020 60 5   Download

Composite materials have gained traction in the world today and are becoming of common use in industrial and specialized applications in general due to their flexible nature that involves mixing through layers or matrixes the components of various substances and therefore, a percentage of each substance’s physical properties.

12p lucastanguyen 01-06-2020 41 2   Download

Zirconia/ veneer bi-layered components are extensively used in dental restoration technology to improve resistance of tooth’s surface from decay. The direction of the fracture propagation at the interface of zirconia and veneer is investigated in this paper.

8p tohitohi 19-05-2020 10 1   Download

An investigation was carried out at Norman E. Borlaug Crop Research Centre of G. B. Pant Univ. Agric. & Tech. Pantnagar, U. S. Nagar, Uttarakhand, India in order to study the influence of long-term applications of fertilizers and manures on different soil physical properties after forty two cycles in silty clay loam textured Typic Haplustept under ricewheat cropping sequence during 2012-13. The field was laid out in a randomized block design comprising of ten treatments.

9p nguaconbaynhay5 16-05-2020 19 1   Download

Chapter 6: Application Layer. Overview of Transport Layer, HTPP and Web, domain name, electrical Email, file transfer. Request and response messages, request and status lines, header format, domain name space, domain names and labels, query and response messages, header format

74p registergmxt 27-05-2018 42 5   Download

Bài giảng Mạng máy tính - Chương 2: Giao thức tầng ứng dụng trình bày một số khái niệm và nguyên tắc, Web & Hyper text transfer protocol, web design and HTTP, Web programming. Mời các bạn cùng tham khảo nội dung chi tiết.

49p nguoibakhong02 19-03-2018 44 3   Download

Bài giảng Mạng máy tính - Chương 2: Lớp ứng dụng (Application Layer) giúp các bạn làm quen với các khái niệm cũng như thực hiện các giao thức ứng dụng (mô hình dịch vụ lớp truyền tải, mô hình client-server, mô hình peer-to-peer).

47p maiyeumaiyeu27 10-01-2017 154 19   Download

Chapter 5 - Wireless security. After studying this chapter you will be able to understand: Wireless concepts, Securing digital cellular telephony, wireless application protocol, wireless transport layer security, hardening wireless local area networks, IEEE 802.11, wired equivalent privacy (WEP).

20p nhanmotchut_3 20-10-2016 67 4   Download

Real-time Transport Protocol (RTP) is the protocol designed to handle real-time traffic on the Internet. RTP does not have a delivery mechanism (multicasting, port numbers, and so on); it must be used with UDP. RTP stands between UDP and the application program. The main contributions of RTP are timestamping, sequencing, and mixing facilities. This chapter provides knowledge of RTP and RTCP.

29p tangtuy09 26-04-2016 55 3   Download

In this chapter we discuss our first client/server application program, Dynamic Host Configuration Protocol (DHCP). This application is discussed first because it is the first client/server application program that is used after a host is booted. In other words, it serves as a bootstrap when a host is booted and supposed to be connected to the Internet, but the host does not know its IP address.

11p tangtuy09 26-04-2016 75 2   Download

Upon completion you will be able to: Differentiate between a unicast, multicast, and broadcast message; know the many applications of multicasting; understand multicast link state routing and MOSPF; understand multicast link state routing and DVMRP; understand the Core-Based Tree Protocol; understand the Protocol Independent Multicast Protocols; understand the MBONE concept.

40p tangtuy09 26-04-2016 75 5   Download